Mobius constellation topological configuration construction method and system for Walker constellation and application

Abstract

The invention belongs to the technical field of satellite network communication, and discloses a Walker constellation-oriented Mobius constellation topological configuration construction method, system and application. According to the implementation scheme, the method comprises the following steps: initializing parameters of Walker constellations and satellite antenna link establishment constraints, and numbering all satellites; according to the constellation parameters and the link establishment constraints, calculating a link establishment set of each satellite; searching a link establishment mode capable of establishing a Mobius constellation topological structure in the different-orbit link establishment set, and generating a link combination set; and establishing an in-orbit link andan out-of-orbit link of the Walker constellation according to the link combination set, and constructing a Mobius constellation topological structure. According to the method, the average path hop count of the satellite network is shortened, the connectivity of the network is enhanced, the average end-to-end delay of the network is reduced, and the information bearing capacity of the Walker constellation space segment is improved. According to the invention, a topology structure with optimal connectivity of the Walker constellation in a one-satellite four-chain mode is provided, the routing cost is reduced, and the cost performance of the network is improved.

Description

technical field [0001] The invention belongs to the technical field of satellite network communication, and in particular relates to a construction method, system and application of a Mobius constellation topology configuration facing the Walker constellation. Background technique [0002] At present, the Walker constellation is a kind of circular orbit constellation with uniform symmetry and good ground coverage characteristics. Its original design intention is to use as few satellites as possible to achieve efficient global coverage. With the advent of the 6G era, satellite Internet not only requires good coverage characteristics, but also requires the establishment of reliable transmission links between satellites to realize the space segment networking of constellations, so as to meet the requirements of high-throughput, low-latency, and high-load networks. Equilibrium and other Qos indicators. This brings new challenges to the spatial topology design of the Walker cons...

AI Technical Summary

Problems solved by technology

[0005] (1) The inter-satellite network topology of the existing Walker constellation is highly complex, and the path length and end-to-end delay of the inter-satellite network routing are relatively large

[0006] (2) The existing technology has high complexity in describing the Walker constellation topology, and the energy efficiency of the inter-satellite network topology is low

[0008] (1) In the process of designing the Walker constellation, changes in parameters such as the number of satellites and the number of orbits make the optimal topology vary with the network scale, which is not conducive to the construction of the Mobius constellation topology

[0009] (2) There are many network nodes in the Walker constellation. Even if there are chain building constraints, there are still complex options for building chains, which is not conducive to the optimal design of the topology.

Images